Metal window-frame.



H"E, AMPBELIL.

wmbow FRAME. APPLICAlmL-gnm APR. 19. 1915.

L Y Patented Apr. 10,1917.

2 SHEETS-SHEET l.

ze 23 2g, )13% fw l 30 g llllllllllllg/l lNvENToR BY 4(/D MM M ATTO NEY H. E. CAMPBELL.

,METAL WNDOW'FRAME.

APPLICATION FILED APR. I9. 1915.

g Patented Apr, 10,1917.A

2 SHEETS-SHEET 2.

1Q IPW* f@ 1, ff-f 11,-/ i. 3 F f7 15 I INvEN'roR @AMORI Ev se 'errata L n. caiarBE'LL, or new Yoan, n. Y.

Application led April 19, 1915. Serial No. 22,315.

To all whom t may concern Be it known that I, HARRY E. CAMPBELL, a citizen of the United States, residingat New York, in the county of New York and State of New York, have invented a certain new and useful lmprovement in Metal Window-Frames, of which the following `is a Specification.

The invention relates to metal windowframes, and consists more particularly in the construction of the hollow jambs.

Tn the accompanying drawings- Figure 1 is an elevation of my windowframe. Fig. 2 is a section of one side of the frame on the line 2, 2 of Fig. 3. Fig. 3 is a section on the line 3, 3 of Fig. 1.

Similar letters and numbersof reference indicate like parts.

A is the lintel, B the sill, and C, D side plates which form the outer walls Aof the hollow jambs, the remaining walls being formed by the plates 27 and 31, as hereinafter described, said plates being separated by a partition 38, so that the jamb is divided into two compartments E, F. The upper sash G and lower sash are slidable in the frame.

The lintel A is a box-shaped casting, having an outwardly projecting shelf 10, which shelf independently of the lintel boXfserves to support a window cap, orrthe front Inasonry of the building. Within thelintel are bearings for the journals of the suspension shafts 16, which carry sprocket wheels 17, over which pass the chains 64, 66. Said chains carry the counter-weights 65, 67 which are disposed in the compartments 7The side plates C, D are bent to the form best shown in section in Fig. 2. They are interposed between the sill B and the lintel A and form the outer walls of the hollow jambs. 0n the under side of the lintel and on the upper side of the sill are three lugs 22 and three lugs 23, Fig. 2, which may be 'ormed integrally with said sill and lintel. The upper and lower edges of the jamb plate C enter between said lugs 22 and 23, and in this way said j amb plate is positioned with respect to said sill and lintel and prevented after positioning from lateral movement. 'Four tie-rods 24 extend lthrough both sill and lintel, and, when the nuts on said rods are set up, bind the sill, lintel and jambs togethen The two weight compartments E, F, in

each hollow jamb are constructed in the following manner, Fig. 2. To a flange 25 at one vertical edge of the j amb plate is secured by means of threaded bolts 26 and nuts, a plate 27 bent at right angles and turned over at its edge, as shown at 28. This plate forms two walls of the weight compartment E. At lts upper and lower ends it is received between two lugs 29 and a lug 30 on the lintel and sill, the turned over edge 28 lapping over one of the lugs 29.

A secondplate 31 similarly bent at right angles and turned over at its edge, as shown at 32, has at its opposite edge a flange 33 which 1s secured to the jarnb'plate C by screw bolts 34 which enter a stay bar 35 on the outer side of said jarnb plate. The bolts 34 pass through horizontal slots 36, Fig. 3, in flange 33, so that when said bolts are loosened, said plate 31 may be moved laterally upon the jamb plate C. The flange 32 laps over a lug 37 on the lintel and sill. This plate 31 forms two walls of' the weight compartment F.

A space is left between the flanged edges 28 and 32 of the plates 27 and 31. The width of said space may be adjusted by moving plate 31 upon the jamb plate as above described. ln said space is disposed a baffleplate 38 which is attached to the jamb plate C by means of an angle-iron welded to said plate and removable bolts 33" passing through said angle-iron and entering the jarnb plate. This plate 38 is preferably made thinner than the other plates forming the jamb, so as to be flexible. Tt forms a partition between compartments E and The inner edge of baffle-plate 38 is flanged over, and to said flange is welded a narrow vertical plate 39. The width of said plate is less thanthe distance between the flanged edges 28, 32 of plates 27, 31, so that openings are left on each side of said plate 39, for a purpose hereafter explained.

The upper sash G has a metal rectangular frame 40, Fig. 3. To the outside of the upper rail of said frame is welded an angle plate 41, and to therear side of said rail a flat plate 42 is detachably secured by removable bolts. The plates 41 and 42 extend below the 'rail so as to form with said rail a channel to receive the upper edge of the glass pane 43. There is a' flange 44 on the under side of the `lintel A which enters beand tween the upper portions of plates 41 The 42 which extend above the sash rail.

, joint between portion .46and plate 42.

On the outside of the lower rail of frame 40 is welded the vertical portion of a rectangularly benty plate 47 whichforms a meeting rail. On the inner side of said lower rail is detachably secured by removable' bolts a fiat plate 48. The lower edge of said plate 48 meets the horizontal portion of said plate 47. The upper edges of plates 47, 48 extend above the lower sash rail to form 'with said rail a channel to receive the lower edge of the glass pane 43.

On the uter face of each vertical side rail of the frame 40 is welded a wide plate 49, Fig. 2, which enters compartment E through the opening between the turned over edge of plate 27 and the edge of plate 39 and extends outwardly to the jamb plate C, Fig. 2.

On the inner face of each vertical side rail of the frame 40 and disposed between the plates 42 and 48 are narrow plates 50, Figs. 5 and 6. These plates are horizontally slotted at intervals to receive the screw bolts 51 by which they are secured to said side rails. By loosening said bolts said plates 50 may be adjusted laterally in order to form a suitable joint between their outer vertical edges and the vertical plate 39. The plates 49 and 5` extend inwardly beyond the side rails of the frame 40 so as to form, chan- ,..nels to receive the vertical edges of the glass pane 43. v

The lower sash H has a metal rectangular` frame 52. On the inner side of the upper rail of said frame is welded a bent over plate 53, forming a meeting rail, the horizontal portion of which laps over the similar portion of the meeting rail 47 of the upper sash. On the outside of said Aupper rail is welded a plate 54, the upper edge of which meets the under surface of said meeting rail 53. On the outside of the lower rail of said frame is welded plate 55 which extends below said rail and bears against the vertical face of a yshoulder 56 formed on the sill B. On the inside of said lower rail is detachably secured a plate 57, the lower edge of which is flush with the bottom edge of said lower rail, and the inner side of which meets the outer face of a flange 57* on said sil On the outside of e'ach vertical side rail of frame 52 is welded a wide plate 58 which 'enters compartment F through the opening between the turned over edge 32 of plate 31 yand the edge of plate 39` and extends out- .wardly to the jamb plate C, F1g..2.

On the 'nnerffa'ce of each vertical side rail of frame 52 and disposed between the plates 53 and 57 are narrow plates 59, similar to plates 50 on the upper sash and in like manner and by like means adjustable to form asuitable joint with plate 3l.

In order to position the jambs with reference to lintel and sill and to the lugs 22 and 23 are provided. With these present, the person assembling the structure is precluded from wrongly placing the jambs with respect to sill and lintel or to 30 either. j The rear plates27 and 31 form the in- `*ner wall of the jamb, and the space between two compartments by the fixed transverse 35 partition 38. i i' fore assembling, their contact with the positioning lugs assures that they are in proper place with respect to the sill and the lintel.

The object of making-the jambs hollow is, first, to give them structural strength, second, to provide tubular runways for the counter-weights, and third, to to receive the plates 49 and 58'.

lThe plate 31 is removable in order to reach the sash weights by withdrawing bolt enable them 34. By removing plate 31, I can easily take out sash H from the frame. Then by taking out bolt 38* which secures baiie plate 38 to outer plate C, I can also easily remove sash G from the frame. By loosening screw upon plate C,

bolt 34, I can slide plate 31 and thus adjust the openings receiving the plates 58 and 49 to suit variations in thickness of sash. This I can do best when the plate 38 is, as described, made of less thickness than the other plates, so as to render it flexible. Then when the plate 31 is moved to compensate for a less thiclmess of ysash than is indicated in Fig. 2, the anged over I edge 32 of said plate pushes against plate 58, thus carrying that plate against the edge of plate 39, which yields because of the flexibility of plate 38, and reduces the width of theh (penlng which receives plate 49 on sas f All the joints have been made weather, 1204 water and dust-proof by special constructions. At.the top ofthe upper sash the angle plate 41 not only covers the deep outer face of the lintel flange 44, but lies at its horizontal portion against thelower face 'of 125 the lintel bottom. The length of the joint is, therefore, greatly increased. On the rear side of the flange 44, rits shallower face is overlapped by the plate 42. The joint between the horizontal portion of the outer prevent lateral 75 movement of the jambs after positioning,

plate 4l is not in line with the joint be-M edge of the plate 42 in line with either the joint between the upper sash rail and the flange, or between the horizontal portion of plate 41 and the bottom of the lintel. Through such a succession of differently placed horizontal joints as these it is practically impossible for dust or moisture to enter.

The horizontal joint between the meeting plates 53 and 47 is also a wide one, and because of the overlapping of these plates is guarded on both sides, and further, because the inner plate 53 laps over the outer plate 47, water running down the upper sash is prevented from entering the joint, and either falls from the upper sash, or else should any travel alongthe plate 47, it can only flow upon the outer surface of the lower sash. i

` At the bottom of the lower sash two plates 57 and 55 coperate, respectively, with a flange on the sill and with a shoulder on said sill below said flange.4 Here again the joints at the lower edge of plate 55 and the lower edges of the vplate 57 are Hush with the Sash rail and are not in line; while any moisture running down the lower sash simply passes from the plate 57 to the inclined portion of the sill and is so carried 0H'.

The plates 4l and 42 and57 and 55 form channels or pockets for the reception of the glass pane: sov do the plates 48 and 47 and 53 and 54. y

The laterally adjustable weather-plates 59 and 50 which are slotted to receive the bolts by which they are attached to the side rails of the sashes, serve the double purpose of wearing plates, which can be adjusted to take up any abrasion between sash and frame, and also of weather plates to prevent entrance of dust and moisture between the side railsof the sash frames and the jambethese movable plates 50, 59 coacting with the fixed plates 49, 58 for the reception of the vertical edges of the glass pane. ln these pockets may be placed any desired packing material, as indicated at 68, Fig. 5. Particular reference is made to the means which I provide for getting rid of planed joints at the sash edges and for preventing friction and the entrance of moisture, dust or drafts of air. rlhe principal permanent joints are between the vertical edges of wide plates 49, 58 and the inner faces of the jamb plates C, D, and not between the vertical edges of the sash frames and the window frame. Owing .to the presence of the baffle plate 88, which separates compartments E and F, any draft entering through the opening in front of plate 49, for example, would have to travel across the compartment E, through the joint at the edge of plate 49, and then back and escape through the same opening on the rear of plate 49. rlhis, however, is prevented by the weather plate 50 which makes a joint with the plate 39. In order to fit the sash in the frame, all that is necessary is to adjust the edges of the plates 49, 58 to fit against the outer plate C and move the weather' plates 50, 59 to fit against plates39 and 31. Any wear or dislocation dueto settlement of the building is easily provided for by similar treatment of the plate edges.

l claim: 'i

1. A metal window-frame, comprising a closed box-shaped lintel separable from the remaining members of said frame, and a ledge on the front face of said lintel extending outwardly beyond said frame to serve as av support for a window-cap or masonry.

2. A metal window-frame, comprising a closed box-*shaped lintel separable from the remaining members of said frame, the bottom wall of said lintel being extended outwardly on the front face thereof beyond the said frame to serve as a support for a window cap or masonry.

3. A metal window-frame, comprising two tubular side members forming jambs and closed at their ends by said lintel and said sill when assembled, each member consisting of an outer wall, side walls and an innerwall formed inv three vertical sections, the middle section being free and separated by clearances from the outer sections, and means for supporting said middle section on said outer wall.

4. A metal window-frame, comprising two tubular side members forming jambs and closed at their ends by said lintel and said sill when assembled, each member consisting of an outer wall, side walls and an inner wall formed in three vertical sections, the middle section being free and separated by clearances from the outer sections, and means for dividing the -interior of each of said boxshaped side members into two vertical compartments and for supporting said middle section on said outer wall.

5. A metal window-frame,comprising side plates C, and on each plate a hollow jamb formed of two plates secured to said side plate at their edges, extending at right an- :Los

gles to said plate parallel to one another,

formed of two plates secured to said side plate'at their edges, extending atl right angles to said plate parallel to one another, and then bent toward one another parallel to said side plate, means for adjustmg one of said plates toward the otherplate, a partition of flexible metal secured at its edge to said side plate and having its opposite edgefree, and a plate sup orted on the free edge of said partition an disposed between the edges of the bent over portions of said firstnamed plates, there being clearances between the opposite edges of said partition plate andthe adjacent edges of said bent over plates.

In testimony whereof I have affixed Iny signature in presence of two witnesses. j

" t HARRY E. CAMPBELL.

Witnesses:

GERTRUDE T. PORTER, ,MAY G. MGGARRY. 

